Okay... Everyone saying (Throw it away only use clean material) you're a bunch of impractical idiots, and I'm not just saying this without a reason let me explain. If you live in CA then you know that we grow grapes.... a lot of grapes. Myclobutanil is predominately used in CA, I mean like 90% or so of the Myclobutanil is used here in CA, pretty much the only other place it is used is France. Its used to control PM on grapes and is sprayed by atomizers or dumped from aircraft over vines to get onto the plant. It travels literally 100's of miles in the air and if you grow out doors pretty much anywhere in CA then you have it. You have it in low or high doses which is why it comes up so often. People know not to use
Eagle 20 but it still comes up in an outdoor field.
Graywolf, Ive followed you for years I mean nearly a decade man and this is hands down the weakest chain of responses I've ever seen from you, as a matter of fact it was so poor that I made an account so I could post this. You almost always have an answer to every problem or at the very least can point someone in the right direction. I have the upmost respect for you by the way.
Pesticide removal is the right way to go. Medicine can still be safe if the pesticides are low reduced below detection which in most cases is between .1-.2ppm. You take in 10x more pesticide eating an apple. Hexane washing is on the right path, most of these pesticides are virtually insoluble in saturated Aliphatic hydrocarbon, but you still have to filter it out so you need to use size exclusion to remove them. a 15 micron filter will probably get you below detection.
The other option is saponification, most of these pesticides undergo hydrolysis under highly alkaline PH. Let it sit for 8-10 hours at a high ph preferably 10-12 and then mix thoroughly, make sure to rebalance or when you begin to take off your solvent you'll make soap. hope this helps people out.